Răspuns :
2a+3b=117
a=3b
2*3b+3b=117
6b+3b=117
9b=117
b=117:9
b=13
a=3*13
a=39
a=3b
2*3b+3b=117
6b+3b=117
9b=117
b=117:9
b=13
a=3*13
a=39
Fie a si b numerele.
2a + 3b=117
a=3b
2 * 3b + 3b = 117 => 6b + 3b = 117 => 9b = 117 => b= 13
a= 3 * 13 = 39